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A person is running at a speed of 10 m/s. If he is running towards a train movin

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Question: A person is running at a speed of 10 m/s. If he is running towards a train moving at 20 m/s in the opposite direction, what is the relative speed of the train with respect to the person?

Options:

  1. 10 m/s
  2. 20 m/s
  3. 30 m/s
  4. 40 m/s

Correct Answer: 30 m/s

Solution: 

Relative speed = speed of train + speed of person = 20 + 10 = 30 m/s.

A person is running at a speed of 10 m/s. If he is running towards a train movin

Practice Questions

Q1
A person is running at a speed of 10 m/s. If he is running towards a train moving at 20 m/s in the opposite direction, what is the relative speed of the train with respect to the person?
  1. 10 m/s
  2. 20 m/s
  3. 30 m/s
  4. 40 m/s

Questions & Step-by-Step Solutions

A person is running at a speed of 10 m/s. If he is running towards a train moving at 20 m/s in the opposite direction, what is the relative speed of the train with respect to the person?
  • Step 1: Identify the speed of the person running. In this case, the person is running at 10 m/s.
  • Step 2: Identify the speed of the train. The train is moving at 20 m/s.
  • Step 3: Determine the direction of both the person and the train. The person is running towards the train, which means they are moving in opposite directions.
  • Step 4: To find the relative speed, add the speed of the person to the speed of the train because they are moving towards each other.
  • Step 5: Calculate the relative speed: 20 m/s (train) + 10 m/s (person) = 30 m/s.
  • Step 6: The relative speed of the train with respect to the person is 30 m/s.
  • Relative Speed – The speed of one object as observed from another object, calculated by adding their speeds when they are moving towards each other.
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